sorry for going all silent on you guys, the help was definitely appreciated!
I did get a ready made PC, but not a branded one in the end and I did get it with Norton, too. I was sceptical at first because of what has been said, but I got a good deal so it was worth seeing who was right. Well, all I can say is that it works for me.
And that's why I have yet another question: Symantec is now offering Norton Internet Security 2007. Do you reckon I should upgrade?